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Finding the Fourth Proportional to 341,888.90, 512,555.88 and 142,358.56

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Solution

The fourth proportional to 341,888.90, 512,555.88 and 142,358.56 is: 213,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,888.90 : 512,555.88 = 142,358.56 : x
  2. Step 2: Convert to fraction form
    341,888.90/512,555.88 = 142,358.56/x
  3. Step 3: Cross multiply
    341,888.90x = 512,555.88 × 142,358.56
  4. Step 4: Simplify right side
    341,888.90x = 72,966,716,996.33
  5. Step 5: Solve for x
    x = 72,966,716,996.33/341,888.90
  6. Step 6: Final answer
    x = 213,422.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.